Main problems on ironmaking environment control and prolonging BF campaign life;

To validate fan can be adopted in subway environmental control system not only at rated frequency but also at frequency conversion conditions,frequency conversion performance research of reverse high-temperature axial fan in subway was conducted.

The environment control system of the KM6 horizontal chamber;

Research development of environment control technology for laboratory animal rooms;

Environment Control Design of Holland Koninklijke Bijenkorf N.V.Department Store;

With the in-depth study of the internal control theory of enterprises, people increasingly emphasize the internal control environment.

The article makes a probe into the internal control in academic libraries under the frame of five essential elements,such as control environment,information and communication,risk assessment,control activity and monitoring,etc.